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Projectile Motion Problem
by Nameless on Wed Oct 22, 2008 4:16 pm
I r confused. Help is needed.
An arrow is shot at 45 degrees at 125 meters/second. It pops a balloon at the peak of its flight. What is the velocity of the arrow as it hits the balloon?
An arrow is shot at 45 degrees at 125 meters/second. It pops a balloon at the peak of its flight. What is the velocity of the arrow as it hits the balloon?
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Nameless- Member
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Location: Unknown, but with known acceleration and direction
Registration date: 2008-09-01 
Re: Projectile Motion Problem
by Michael on Thu Oct 23, 2008 9:34 am
at the peak of its flight, its y-velocity equals 0. (it's at the maximum height, so the slope (equal to velocity) on a y-distance vs time graph would be 0).
First split it into x and y components.
Vx = V cos theta
Vy = V sin theta
Because Vy is 0 at the peak of its flight, the velocity is only its x component.
Vx = 125 cos 45
First split it into x and y components.
Vx = V cos theta
Vy = V sin theta
Because Vy is 0 at the peak of its flight, the velocity is only its x component.
Vx = 125 cos 45
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